Re: Re: Adjacency List Processing in XML::Twig

[chipmunk]

Changing the nested grep to a grep map would change the semantics of the code.

grep { grep { $_->text eq $search_text } $_->children  } @data;

This nested grep returns a list of elements for which any child contains the search text.

grep { $_->text eq $search_text } map { $_->children } @data;

This grep map a list of individual children that contain the search text.

 

With a search for 'menlo park', the nested grep returns two elements; one has the children '<city>menlo park</city>' and '<city>palo alto</city>', and the other has the children '<city>atherton</city>' and '<city>menlo park</city>'.

The grep map, on the other hand, would just return '<city>menlo park</city>' and '<city>menlo park</city>'.

[japhy]

Oh, right. Sorry, princepawn, I misconstrued the purpose of that part of the code. That was silly of me.

_____________________________________________________
Jeff[japhy]Pinyan: Perl, regex, and perl hacker.
s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;